6.4X0.25十3.6÷4用简便方法计算
问题描述:
6.4X0.25十3.6÷4用简便方法计算
答
6.4X0.25十3.6÷4
=6.4X0.25十3.6X0.25
=0.25X(6.4+3.6)
=0.25X10
=2.5